To Batten

1. (intransitive) To become better; improve in condition, especially by feeding.
2. (intransitive, figuratively) To feed (on); to revel (in).
3. (intransitive) To thrive by feeding; grow fat; feed oneself gluttonously.
4. (intransitive) To thrive, prosper, or live in luxury, especially at the expense of others; fare sumptuously.
5. (intransitive) To gratify a morbid appetite or craving; gloat.
6. (transitive) To improve by feeding; fatten; make fat or cause to thrive due to plenteous feeding.
7. (transitive) To fertilize or enrich, as land.